Sökning: "pig slurry"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden pig slurry.

  1. 1. Increase of biogas production by incorporating residual streams from agriculture

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Stephanie Fjäll; [2022]
    Nyckelord :Anaerobic digestion; Agricultural residue; Lignocellulosic biomass; Mechanical pretreatment; Biogas production; Biorefinery; Chemical engineering; Agriculture and Food Sciences; Technology and Engineering;

    Sammanfattning : To expand the biogas production in Region Västra Götaland (RVG), residual streams from the agricultural sector can function as a large-scale supplier of biomass. The production of biogas decreases the dependence of fossil fuels and the digestate that is formed can also be returned to the agricultural sector, creating a closed loop. LÄS MER

  2. 2. Vilka aspekter finns det att beakta kring gödselseparering och dess transporter?

    M1-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Emil Karlsson; Magnus Nyholm; [2020]
    Nyckelord :gödselseparation; fosfor; övergödning; transport och dess miljöpåverkan;

    Sammanfattning : I dagens jordbruk finns det en ojämn fördelning utav näringsämnena från den animaliska gödseln. De flesta djurgårdarna är belägna i skogs och mellanbygd där det oftast inte finns tillräckligt med spridningsareal. LÄS MER

  3. 3. Practical strategies for acidification of animal slurry in storage

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Soil and Environment

    Författare :Emil Larsson; [2018]
    Nyckelord :buffer capacity; foam; NH3 emission; pH evolution; sulphuric acid;

    Sammanfattning : Animal slurry is a source of NH3 emissions which results in loss of N and decrease the nutritive value of slurry. Slurry stores in Sweden represents approximately 30% of total NH3 emissions from agricultural activities in the country. LÄS MER

  4. 4. Systematic Assessment of Straw as Potential Biogas Substrate in Co-digestion with Manure

    Master-uppsats, Linköpings universitet/Industriell miljöteknik; Linköpings universitet/Tekniska högskolan

    Författare :Sutina Duong; [2014]
    Nyckelord :Biogas; substrate; straw; systematic assessment; renewable energy; biofertilizer; anaerobic digestion; Biogas; biogassubstrat; halm; systematisk utvärdering; förnybar energi; biogödsel; rötning;

    Sammanfattning : This work was carried out at Biogas Research Center (BRC) and the company Biogas in Vadstena. The aim was to systematically evaluate new substrates for biogas production. In particular, this case investigated the potential of straw in co-digestion with manure and slurry from pig, chicken and dairy. LÄS MER

  5. 5. Environmental impacts of alternative co-substrates for biogas production : a comparative life cycle assessment

    Master-uppsats, SLU/Dept. of Urban and Rural Development

    Författare :Giovanna Catalina Croxatto Vega; [2012]
    Nyckelord :biogas; pig slurry; substrate; environmental impacts; wheat straw; OFMSW; organic fraction; municipal solid waste; solid fraction; separated slurry; LCA; life cycle assessment;

    Sammanfattning : In recent years, the production of biogas from animal manure has gained increased attention in Denmark, as it has been identified as an important resource to reach the goal of a fossil free society by 2050. In addition, manure management with biogas production has been recognized as a viable way to reduce environmental impacts from animal production systems. LÄS MER